Question: What is the series ordinal of Philip V of France's child Margaret I, Countess of Burgundy?
Paraphrase: Which child of Philip V of France is Margaret I, Countess of Burgundy, numerically?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q8433 p:P40 ?s . ?s ps:P40 wd:Q261999 . ?s pq:P1545 ?value}